使用电子邮件或用户名登录 Django（自定义用户模型）

Question

我是 django 的新手。我希望该用户能够使用用户名或电子邮件登录。我正在使用自定义用户模型。注册页面工作正常，但在提交登录数据时出现登录错误。

我的代码不工作。我不知道如何让它正常工作。如果有人可以帮助开始工作，请 properly.thanks

//views.py

from django.shortcuts import render
from .forms import UserCreationForm,UserLoginForm
from django.http import HttpResponseRedirect
from django.contrib.auth import login,get_user_model, logout,authenticate

# Create your views here.
def base(request):
    return render(request, 'articles/base.html')

def login(request,*args,**kwargs):
    form=UserLoginForm(request.POST or None)
    if form.is_valid():
        user_obj=form.cleaned_data.get('user_obj')
        print(user_obj)
        username = user_obj['query']
        password = user_obj['password']
        user = authenticate(username=username, password=password)
        if user is not None:
            print("in login")
            login(request, user)
            return HttpResponseRedirect('/')
        else:
            return render(request, 'login1.html',  {'form': form})
    return render(request, 'articles/login1.html',{'form':form})

//forms.py

from django import forms
from django.contrib.auth import get_user_model
from django.db.models import Q
from django.contrib.auth import get_user_model


User=get_user_model()
class UserCreationForm(forms.ModelForm):

    password1 = forms.CharField(label='Password', widget=forms.PasswordInput)
    password2 = forms.CharField(label='Password confirmation', widget=forms.PasswordInput)

    class Meta:
        model=User
        fields=['username','email']

    def clean_password(self):
        # Check that the two password entries match
        password1 = self.cleaned_data.get("password1")
        password2 = self.cleaned_data.get("password2")
        if password1 and password2 and password1 != password2:
            raise forms.ValidationError("Passwords don't match")
        return password2

    def save(self, commit=True):
        # Save the provided password in hashed format
        user = super(UserCreationForm, self).save(commit=False)
        user.set_password(self.cleaned_data["password1"])
        if commit:
            user.save()
        return user

class UserLoginForm(forms.Form):
    query=forms.CharField(label='Username/Email')
    password=forms.CharField(label='Password',widget=forms.PasswordInput)

    def clean(self,*args,**kwargs):
        query=self.cleaned_data.get('query')
        password=self.cleaned_data.get('password')
        user_qs_final=User.objects.filter(
                Q(username__iexact=query)|
                Q(email__iexact=query)
            ).distinct()
        if not user_qs_final.exists() and user_qs_final!=1:
            raise forms.ValidationError("Invalid credentials-user does not exits")
        user_obj=user_qs_final.first()
        if not user_obj.check_password(password):
            raise forms.ValidationError("credential are wrong")
        self.cleaned_data["user_obj"]=user_obj
        return super(UserLoginForm,self).clean(*args,**kwargs)

目前我遇到了这个错误

 TypeError: 'User' object is not subscriptable

Answer 1

问题在于您如何在 login 方法中访问用户对象上的字段：


def login(request,*args,**kwargs):
    form=UserLoginForm(request.POST or None)
    if form.is_valid():
        user_obj=form.cleaned_data.get('user_obj')
        print(user_obj)
        # username = user_obj['query']
        # password = user_obj['password']
        username = user_obj.username
        password = user_obj.password
        user = authenticate(username=username, password=password)
        if user is not None:
            print("in login")
            login(request, user)
            return HttpResponseRedirect('/')
        else:
            return render(request, 'login1.html',  {'form': form})
    return render(request, 'articles/login1.html',{'form':form})

访问模型的字段值时，使用 . 而不是 []。

使用电子邮件或用户名登录 Django（自定义用户模型）

login in django using email or username (custom user model)

django

django-login

django-custom-user

django-2.1